FI82510C - Electric heater for pipes - Google Patents
Electric heater for pipes Download PDFInfo
- Publication number
- FI82510C FI82510C FI891233A FI891233A FI82510C FI 82510 C FI82510 C FI 82510C FI 891233 A FI891233 A FI 891233A FI 891233 A FI891233 A FI 891233A FI 82510 C FI82510 C FI 82510C
- Authority
- FI
- Finland
- Prior art keywords
- pipe
- wall
- tube
- duct
- heater
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/14—Devices for thawing frozen pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/10—Devices preventing bursting of pipes by freezing
- E03B7/12—Devices preventing bursting of pipes by freezing by preventing freezing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
8251 0 Sähkövirralla toimiva putken lämmitin8251 0 Electric tube heater
Vesi-ja viemärijohtoja joudutaan usein avaamaan lämmittämällä näiden jäädyttyä umpeen.Water and sewer lines often have to be opened by heating when they freeze.
5 Sulatus on vaikeutunut entisestään siksi että näitä johtoja on alettu valmistaa sähköä johtamattomasta materiaalista, kuten muovista. Putkea ei täten enää voi lämmittää käyttämällä sitä sähkövastuksena.5 Smelting has become even more difficult as these wires have begun to be made of non-conductive material such as plastic. The tube can thus no longer be heated by using it as an electric heater.
Lämmitystä on yritetty kiertämällä putken pinnalle tai 10 sijoittamalla sen sisälle sähköä johtavia lankoja, jotka toimivat vastuksena. Näiden lankojen suojaus on kuitenkin hankalaa ja sisäpuolella sijaitsevat häiritsevät myös nesteen vapaata virtausta. On myös yritetty käyttää muovista putkea, jossa vastuslangat on upotettu 15 putken seinämään joko putken suuntaisina tai kierteisesti. Jotta ei tarvitsisi putkimateriaalin ulkopuolisia paluujohtimia, on materiaalin sisään upotetut vastuslangat voitu putken asennusvaiheessa parittain oikosulkea putken toisessa päässä. Paitsi vastuslankaa on vastukse-20 na voitu käyttää myös nauhan tai muun muotoista vastusta. On kuitenkin vaikeaa valmistaa putkea, jonka seinämään jo valmistusvaiheessa upotetaan vastuslanka. Varsinkin jos käytetään normaalista 380 V, 230 V tai 110 V jännitettä, joka edellyttää vastuslangan suojaamista 25 vahingoittumiselta useissa maissa voimassa olevien sähkö turvallisuus vaati mu s ten mukaisesti.Attempts have been made to heat the heating by winding it on the surface of the tube or by placing electrically conductive wires inside it which act as a resistance. However, the protection of these wires is difficult and those located inside also interfere with the free flow of liquid. Attempts have also been made to use a plastic tube in which the resistance wires are embedded in the wall of the tube 15, either parallel to the tube or helically. In order to avoid the need for return conductors outside the pipe material, the resistance wires embedded in the material can be short-circuited at the other end of the pipe during the pipe installation phase. In addition to the resistance wire, it has also been possible to use a resistor in the form of a strip or other resistor. However, it is difficult to make a pipe in the wall of which a resistance wire is embedded in the wall already at the manufacturing stage. Especially if a normal voltage of 380 V, 230 V or 110 V is used, which requires protection of the resistor wire from damage 25 in accordance with the electrical safety requirements in force in several countries.
Oheinen keksintö poistaa nämä haitat. Se on tunnettavissa lähinnä niistä seikoista, jotka on mainittu patenttivaatimuksessa 1.The present invention overcomes these disadvantages. It is known mainly from the facts mentioned in claim 1.
30 Keksinnön eräs sovellutus on seuraavassa selostettu oheisen kuvan 1 avulla.An embodiment of the invention is described below with reference to the accompanying Figure 1.
Valmiin muoviputken seinämän 1 ulkopuolelle valetaan lisäke, joka muodostaa kanavan 2, jonka sisälle voidaan joko putken valmistuksen viimeisenä vaiheena tai myöhem-35 min vetää suojattu vastuslanka tai lankoja 3, samaan tapaan kuin sähkökaapelit vedetään rakennuksissa käytettyihin muoviputkistoihin. Kanava vastuslankoja varten voidaan myös tehdä putken seinämään jo itse putken vai- 2 82510 mistuksen puristusvalun yhteydessä. Kanava voidaan myös tehdä tavanomaisen putken päälle työntämällä muovikais-taan 5, kuten kuvassa 2 on esitetty. Muovikaistan helmat 6 vain työnnetään putken ympärille.An extension is cast outside the wall 1 of the finished plastic pipe, forming a duct 2 into which a shielded resistance wire or wires 3 can be laid either at the last stage of pipe production or later 35 minutes, just as electrical cables are laid in plastic pipes used in buildings. The channel for the resistance wires can also be made in the wall of the pipe already in connection with the injection molding of the pipe itself. The channel can also be made on a conventional pipe by pushing a plastic strip 5, as shown in Figure 2. The skirts 6 of the plastic strip are simply pushed around the tube.
5 Lankojen vastus, suojaus ja rakenne yleensäkin voi vaihdella käyttötarkoituksen mukaan.5 The resistance, protection and construction of wires in general may vary depending on the application.
Langat voidaan lukita paikoilleen, ja jopa valaa yhteen putkimateriaalin kanssa lämmönjohtokyvyn parantamiseksi jos kanavan seinämään sen valmistusvaiheessa tai myöhem-10 min tehdään reikiä 4, joiden kautta kanavaan puristetaan sopivaa sidos-ja täytemassaa. Massa voidaan sopivalla lävistimellä varustetulla puristimella painaa myös seinämän läpi ilman että tarvitaan reikiä 4. Putkia paikoilleen asennettaessa on kaapeli lämmönjohtumisen pa-15 rantamiseksi yleensä syytä sijoittaa putken keskustasta alaspäin.The wires can be locked in place, and even cast together with the pipe material to improve the thermal conductivity if holes 4 are made in the wall of the duct during its manufacture or later-10 min, through which a suitable bonding and filling mass is pressed into the duct. The mass can also be pressed through the wall with a press equipped with a suitable punch without the need for holes 4. When installing the pipes, it is usually advisable to place the cable to improve the heat conduction downwards from the center of the pipe.
Kanavia 2 voi olla paitsi yksi tarpeen mukaan myös useita.Channels 2 can be not only one as needed but also several.
lili
Claims (4)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI891233A FI82510C (en) | 1989-03-16 | 1989-03-16 | Electric heater for pipes |
| CA002062738A CA2062738A1 (en) | 1989-03-16 | 1990-03-16 | Electric current heater for pipes |
| PCT/FI1990/000068 WO1990010817A1 (en) | 1989-03-16 | 1990-03-16 | Electric current heater for pipes |
| NO91914618A NO914618L (en) | 1989-03-16 | 1991-11-25 | ELECTRICAL HEATER FOR BEETS |
| SE9103481A SE469533B (en) | 1989-03-16 | 1991-11-25 | Electric current heater for pipes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI891233A FI82510C (en) | 1989-03-16 | 1989-03-16 | Electric heater for pipes |
| FI891233 | 1989-03-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI891233A0 FI891233A0 (en) | 1989-03-16 |
| FI82510B FI82510B (en) | 1990-11-30 |
| FI82510C true FI82510C (en) | 1991-03-11 |
Family
ID=8528063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI891233A FI82510C (en) | 1989-03-16 | 1989-03-16 | Electric heater for pipes |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA2062738A1 (en) |
| FI (1) | FI82510C (en) |
| NO (1) | NO914618L (en) |
| SE (1) | SE469533B (en) |
| WO (1) | WO1990010817A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7626146B2 (en) | 2005-08-09 | 2009-12-01 | Watlow Electric Manufacturing Company | Modular heater systems |
| US7964826B2 (en) * | 2005-08-09 | 2011-06-21 | Watlow Electric Manufacturing Company | Modular heater systems |
| US7919733B2 (en) | 2005-08-09 | 2011-04-05 | Watlow Electric Manufacturing Company | Modular heater systems |
| US8809751B2 (en) | 2005-08-09 | 2014-08-19 | Watlow Electric Manufacturing Company | Modular heater system |
| CN103122811A (en) * | 2012-11-28 | 2013-05-29 | 襄阳康捷飞龙电气有限公司 | Heating oil pipe for automobile |
| JP6907210B2 (en) | 2015-12-16 | 2021-07-21 | ワットロー・エレクトリック・マニュファクチャリング・カンパニー | Improved modular heater system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3214571A (en) * | 1963-05-27 | 1965-10-26 | William J Indoe | Heating cable and connectors therefor |
| DE1600544A1 (en) * | 1967-03-03 | 1970-02-05 | Poppe Dipl Ing Ulrich | Pipe for flowing gases or pipelines carrying liquids |
| FI54393C (en) * | 1968-06-05 | 1978-11-10 | Sverre Magnus Elvestad | FROSTFRI PLASTLEDNING |
| US3617699A (en) * | 1969-03-10 | 1971-11-02 | Donald F Othmer | A system for electrically heating a fluid being transported in a pipe |
| US3706872A (en) * | 1970-05-15 | 1972-12-19 | William J Trabilcy | System for electrically heating fluid-conveying pipe lines and other structures |
| US3834458A (en) * | 1973-06-15 | 1974-09-10 | Thermon Mfg Co | Pipe heat transfer assembly and method of making same |
| JPS5541646A (en) * | 1978-09-18 | 1980-03-24 | Shinetsu Polymer Co | Hollow tubular heater |
| SE7904310L (en) * | 1979-05-16 | 1980-11-17 | Bulten Kanthal Ab | ELECTRICAL ELEMENT |
| US4581521A (en) * | 1980-08-28 | 1986-04-08 | Grise Frederick Gerard J | Electrically heated pipe assembly |
| US4791277A (en) * | 1987-02-09 | 1988-12-13 | Montierth Garry L | Heating and insulation arrangement for a network of installed pipes and method |
-
1989
- 1989-03-16 FI FI891233A patent/FI82510C/en not_active IP Right Cessation
-
1990
- 1990-03-16 WO PCT/FI1990/000068 patent/WO1990010817A1/en active Application Filing
- 1990-03-16 CA CA002062738A patent/CA2062738A1/en not_active Abandoned
-
1991
- 1991-11-25 SE SE9103481A patent/SE469533B/en not_active IP Right Cessation
- 1991-11-25 NO NO91914618A patent/NO914618L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990010817A1 (en) | 1990-09-20 |
| NO914618D0 (en) | 1991-11-25 |
| CA2062738A1 (en) | 1990-11-26 |
| SE9103481D0 (en) | 1991-11-25 |
| SE9103481L (en) | 1992-01-24 |
| NO914618L (en) | 1992-04-21 |
| SE469533B (en) | 1993-07-19 |
| FI82510B (en) | 1990-11-30 |
| FI891233A0 (en) | 1989-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: URPO VAINIO OY |